Add @JSName annotation for native fields and methods.

sdk/lib/_internal/compiler/implementation/enqueue.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart2js;
 
 class EnqueueTask extends CompilerTask {
   final Enqueuer codegen;
   final Enqueuer resolution;
 
@@ skipping 153 matching lines @@
    * Documentation wanted -- johnniwinther
    */
   void processInstantiatedClassMember(ClassElement cls, Element member) {
     assert(invariant(member, member.isDeclaration));
     if (universe.generatedCode.containsKey(member)) return;
     if (resolvedElements[member] != null) return;
     if (!member.isInstanceMember()) return;
     if (member.isField()) {
       // Native fields need to go into instanceMembersByName as they are virtual
       // instantiation points and escape points.
+      // Test the enclosing class, since the metadata has not been parsed yet.
       if (!member.enclosingElement.isNative()) return;
     }
 
     String memberName = member.name.slowToString();
     Link<Element> members = instanceMembersByName.putIfAbsent(
         memberName, () => const Link<Element>());
     instanceMembersByName[memberName] = members.prepend(member);
 
     if (member.kind == ElementKind.FUNCTION) {
       if (member.name == Compiler.NO_SUCH_METHOD) {
@@ skipping 19 matching lines @@
       // the set contains any selector we have to assume that it matches.
       if (universe.hasInvocation(member, compiler)) {
         return addToWorkList(member);
       }
     } else if (member.kind == ElementKind.SETTER) {
       if (universe.hasInvokedSetter(member, compiler)) {
         return addToWorkList(member);
       }
     } else if (member.kind == ElementKind.FIELD &&
                member.enclosingElement.isNative()) {
+      nativeEnqueuer.registerField(member);
       if (universe.hasInvokedGetter(member, compiler) ||
           universe.hasInvocation(member, compiler)) {
         nativeEnqueuer.registerFieldLoad(member);
       }
       if (universe.hasInvokedSetter(member, compiler)) {
         nativeEnqueuer.registerFieldStore(member);
       }
     }
   }
 
@@ skipping 177 matching lines @@
 
   String toString() => 'Enqueuer($name)';
 
   void logSummary(log(message)) {
     log(isResolutionQueue
         ? 'Resolved ${resolvedElements.length} elements.'
         : 'Compiled ${universe.generatedCode.length} methods.');
     nativeEnqueuer.logSummary(log);
   }
 }